package 第六周;

public class banknumber {
        public static void main(String[] args) {
            bank ba = new bank("232323");
            System.out.println(ba.toString());
            bank ba2 = new bank("232324");
            ba2.setInterestRate(0.05);
            System.out.println(ba2.toString());
            System.out.println(ba.toString());
        }
    }
